Adapter that converts the locking and unlocking method of a crescent lock to a thumb turn type

The adapter converts the crescent lock's operation to a thumb-turn type by using a base, bearing, and rotational force transmission parts, enhancing operability and enabling smart lock compatibility.

JP3252782UActive Publication Date: 2025-09-11渡邉 俊文
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Patent Information

Application Number
JP2025001137U
Authority / Receiving Office
JP · JP
Patent Type
Utility models
Current Assignee / Owner
Filing Date
2025-04-13
Publication Date
2025-09-11
Estimated Expiration
2035-04-13

AI Technical Summary

Technical Problem

The crescent lock's operating lever has poor operability and visibility during locking and unlocking, and it cannot be operated with a thumbturn smart lock, preventing its use with a thumbturn smart lock system.

Method used

An adapter comprising a base fixed to the sliding door frame, a bearing for a thumb-turn shaped operating part, and a rotational force transmission part that includes a shaft, thumb turn unit, lever unit, and hook unit to convert the crescent lock's operation to a thumb-turn type, allowing adjustment and compatibility with smart locks.

Benefits of technology

Enables the crescent lock to be operated with a thumbturn smart lock system, providing improved operability and visibility, and accommodating left/right orientation and size variations.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide an adapter that converts the operation method for locking and unlocking a crescent lock into a thumb turn type by attaching it to the frame of a door that opens and closes by sliding. [Solution] The adapter has a base 1 attached to the frame of a sliding door fitted with a crescent lock, and by gripping the operating lever of the crescent lock with a hook 6 of the rotational force transmission unit 2, the crescent lock can be locked and unlocked when the thumb-turn unit 4 of the rotational force transmission unit 2 is rotated using the thumb-turn method. Also, by attaching a smart lock for thumb-turn to the thumb-turn unit 4 of the rotational force transmission unit 2, it becomes possible to lock and unlock using the smart lock for thumb-turn system.
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Description

[Technical Field]

[0001] This specification relates to an adapter that converts the locking and unlocking method of a crescent lock to a thumb turn method. [Background technology]

[0002] A crescent lock is a key that is attached to the interior side of a sliding door and can be used to lock and unlock the operating lever. The smart lock for thumb turns is a unit that is installed on a door that is systemized with a control circuit and installation mechanism to lock and unlock the door lock's thumb turn. [Prior art documents] [Patent documents]

[0003] Patent No. 7417330 Patent Publication No. 2018-28261 Summary of the Invention [Problem to be solved by the invention]

[0004] The operating lever of a crescent lock has poor operability and visibility when locking and unlocking the key.

[0005] The operating lever of the crescent lock cannot be operated with a thumbturn smart lock, and the lock cannot be locked or unlocked using the thumbturn smart lock system. [Means for solving the problem]

[0006] The adapter is made up of a base 1 that is fixed to the frame of a sliding door to fix the relative position of the crescent lock and this adapter, a bearing provided on the base 1 that allows the thumb-turn shaped operating part to be rotated, and a rotational force transmission part 2 that has a part that transmits the rotational force to the operating lever of the crescent lock.

[0007] The rotational force transmission unit 2 is composed of a rotational transmission shaft 3 that is inserted into a bearing provided on the base 1, a thumb turn unit 4 that receives the rotational force by means of a thumb turn, a lever unit 5 that extends and transmits the rotational force to the position of the operating lever of the crescent lock, and a hook unit 6 that grasps the operating lever of the crescent lock.

[0008] The base 1 is fixed to the frame of a sliding door by using double-sided tape, adhesive, magnets, or screws.

[0009] The base 1 can be configured to be assembled from a base top part 7 and a base base part 8, so that the height of the adapter can be adjusted to match the height of the thumbturn lock in the Z-axis direction. The base top part 7 can be fixed to the base base part 8 by double-sided tape, adhesive, magnets, or screws.

[0010] The base 1 and the rotation transmitting shaft 3 may be inserted directly or via a bearing.

[0011] The thumb turn unit 4, which receives the rotational force by means of the rotational force transmission unit 2 and the thumb turn system, may be configured as a combination of a split thumb turn unit 9 and a split lever unit 10 for the purpose of adjusting the size of the thumb turn shape. The split thumb turn unit 9 and the split lever unit 10 are fixed together with double-sided tape, adhesive, or screws.

[0012] The lever portion 5, which extends and transmits the rotational force to the position of the operating lever of the crescent lock, and the hook portion 6, which grips the operating lever of the crescent lock, may be configured as a hook receiving portion 11 and an exchangeable hook portion 12, with the aim of making their length or size changeable according to the length or size of the operating lever of the crescent lock. The exchangeable hook portion 12 is configured to be able to slide and move relative to the hook receiving portion 11, and the hook receiving portion 11 and the exchangeable hook portion 12 are fixed with adhesive or screws.

[0013] To accommodate a crescent lock with reversed left and right sides, the mirror base 13 and mirror rotation force transmission portion 14 may be combined in a configuration with reversed left and right sides.

[0014] A screw receiving portion 15 may be provided for the purpose of screwing a smart lock for thumb turn to the base 1. [Effects of the Invention]

[0015] The locking and unlocking method of a crescent lock, which is independent of left / right orientation or size, can be converted to a thumb-turn type. Also, by installing a thumb-turn smart lock, it becomes possible to lock and unlock the crescent lock using the thumb-turn smart lock system. [Brief explanation of the drawings]

[0016] [Figure 1] This is a perspective view (front) of the entire adapter. [Figure 2] This is a perspective view (front) of the entire adapter. [Figure 3] FIG. 2 is a front view of the entire adapter. [Figure 4] FIG. 2 is a rear view of the entire adapter. [Figure 5] This is a left side view of the entire adapter. [Figure 6] This is a right side view of the entire adapter. [Figure 7] This is a plan view (top) of the entire adapter. [Figure 8] The bottom is a plan view of the entire adapter. [Figure 9] FIG. 2 is a perspective view (front) of the base top portion and the base base. [Figure 10] FIG. 1 is a perspective view (front) of a split thumb turn portion, a split lever portion, a hook receiving portion, and a replaceable hook portion. [Figure 11] This is a perspective view (back) of the split thumb turn portion, split lever portion, hook receiving portion, and replaceable hook portion. [Figure 12] FIG. 2 is a front view of the split thumb turn portion, split lever portion, hook receiving portion, and replaceable hook portion. [Figure 13] 10 is a rear view of the split thumb turn portion, split lever portion, hook receiving portion, and replaceable hook portion. FIG. [Figure 14] 1A and 1B are left and right views of a split thumb turn portion, a split lever portion, a hook receiving portion, and a replaceable hook portion. [Figure 15] This is a plan view (top) of the split thumb turn portion, split lever portion, hook receiving portion, and replaceable hook portion. [Figure 16] This is a plan view (bottom) of the split thumb turn portion, split lever portion, hook receiving portion, and replaceable hook portion. [Figure 17] This is a perspective view (front) of the overall configuration, with the left and right sides reversed. [Figure 18] This is a perspective view (front) of a configuration in which a screw receiving portion is added to the base. [Explanation of symbols]

[0017] 1. A base that is fixed to the frame of a sliding door to fix the relative position of the crescent lock and this adapter. 2. Rotational force transmission section that transmits rotational force to the operating lever by rotating the thumb-turn type operating section. 3. A part of the rotational force transmission unit 2, a rotation transmission shaft inserted into a bearing provided on the base 1 4. A thumb turn part that is part of the rotational force transmission part 2 and receives the rotational force by a thumb turn type. 5. A lever part that is part of the rotational force transmission part 2 and extends and transmits the rotational force to the position of the operating lever of the crescent lock. 6. A hook part of the rotational force transmission part 2 that grips the operating lever of the crescent lock 7 Top part of base when base 1 is divided 8 Base part of base when base 1 is divided 9 Split thumb turn part when the rotational force part 2 is split 10 Split lever portion when the rotational force portion 2 is split 11 Hook receiving portion when the lever portion 5 and the hook portion 6 are configured separately 12 Replaceable hook portion when lever portion 5 and hook portion 6 are configured separately 13 A base that is fixed to the frame of a sliding door to fix the relative position of the crescent lock and this adapter when configured left and right reversely. 14 A rotational force transmission unit having a portion that transmits rotational force to an operating lever by rotating a thumb-turn type operating unit when the left and right are reversed. 15 Screw receiving portion for fixing the smart lock to the base 1

Claims

[Claim 1] By attaching this adapter to the frame of a sliding door, it converts the operation method of the crescent lock into a thumb turn type.